# Build Fix > Diagnose and fix build errors with minimal changes. Use when this capability is needed. - Skill: `tomevault-io/build-fix-3` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/build-fix-3` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/build-fix-3/raw - Safety review: pending (external: skill-scanner PASS, skillspector PASS) - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: Coding & Dev Tools - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/build-fix-3 --- # /build-fix Spawns the `build-error-resolver` agent to diagnose build failures and apply targeted fixes. ## Steps 1. **Gather context** — determine the build command and current error state: - Check `.claude-toolkit.json` for `commands.build` - Fall back to auto-detection: `package.json` scripts, `Makefile` targets, language defaults - If arguments are provided (e.g., specific error output), pass those directly 2. **Spawn the agent** — use the Task tool: ``` Task tool with subagent_type="build-error-resolver" ``` Pass in the prompt: - The build command to run - Any captured error output (if available) - The project's language and framework context 3. **Present findings** — relay the agent's fix report: - Show initial error count vs final error count - List each fix applied with file path and description - Flag any remaining errors that need manual review 4. **Offer follow-up actions**: - "Run tests?" — verify fixes did not break test suite - "Review changes?" — spawn code-reviewer on the fixes --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/bis-code) — claim your Tome and manage your conversions.